Assay card for an assay chamber



FIG. 1 is a top plan view of an assay card for an assay chamber, showing my design;

FIG. 2 is a bottom plan view thereof; and,

FIG. 3 is a top, front and right side perspective view thereof.

The broken line showing in the figures is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an assay card for an assay chamber, as shown and described. 